Sewing-machine.



J. J. HEAP.

SEWING MACHINE.

APPLICATION FILED JUNE 9. IBM.

1 ,274, 1 62. Patented July 30, 1918.

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v SEWING MACHINE. APPLICATION FILED wuss. I914.

Patented July 30, 1918.

3 SHEETSSHEET 2 attouuqf J. J. HEA-P.

SEWING'MACHINE.

APPLICATION man Junie, 1914.

1 ,274, 1 62. Patented July 30, 1918.-

3 SHEETS-SHEET 3.

Smoemtoz a Home 5 UNITED STATES PATENT OFFICE.

JESSE T. HEAP, OF NEW YORK, N. Y., ASSIGNOR UNION SPECIAL MACHINECOMPANY, OF CHICAGO, ILLINOIS ,'A CORPORATION OF ILLINOIS.

SEWING-MACHINE.

Specification of Letters Iatent.

Application flled lune 9, 1914. Serial No. 843,960.

To all whom it may concern:

Be it known that I, Jnssn J. HEAP, a citizen of the United States,residing at New York, in the county of New York, State of New York, haveinvented certain new and useful Improvements in Sewing-Machines, ofwhich the following is a description, reference being had to theaccompanying drawmg and to the, figures of reference marked thereon.

The invention relates to new and useful improvements in sewing machinesand more especially to means for stitching an insertion or other stripbetween two edges of fabric.

An object of the invention is to provide a sewing machine having spacedneedles with means for guiding the edges of a fabric and an insertion sothat it will be simultaneously joined to the edges of the fabric. Afurther object of the invention is to provide .a machine of the abovecharacter with devices whereby an insertion of greater width than thedistance between the needles of the sewing machine may be stitched tospaced edges of a fabric.

I provide means for turning the edges of the A further object of theinvention is to fabric prior to the stitching of the same to theinsertion.

These and other objects will in part be obvious and will in part behereinafter more fully discussed.

In the drawings: in

Figure 1 is a front view of a portion of a sewing machine having myimproved guidin devices attached thereto.

ig. 2 is a plan view of the same.

Fig. 3 is a longitudinal sectional view centrally through the guidingdevice.-

Fig. 4 is a transverse sectional view on the line 4-4 of Fig. 2.

Fig. 5 is a sectional view on the hue .5--5 of Fig. 3. 0

Fig. 6 is a detail in perspect ve showing the take up rib for theinsertion, the adjusting screw being detached from the block supportingthe rib.

Fig. 7 is a longitudinal sectional view of the guiding device fortheansertion Fig. 8 is a detail in sect1on show1ng the position of theinsertion as it is stitched to the fabric.

Fig. 9 is a sectional view showing the insertion flattened out, or thefinished article in normal position.

Fig. 10 is a plan view of the same.

Fig. 11 is a detail in side elevation showing a modified form of devicewherein the insertion guide is supported by the overhanging arm of thesewing machine.

Fig. 12 is a front view of the same.

Fig. 13 is a sectional view on the line 13--13 of Fig. 11. 4

Fig. 14 is a longitudinal sectional view through the insertion guide.

Fig. 15 is a perspective view of the insertion guide.

Fig. 16 is a detail in section showing the insertion as it is stitched.to the edges of the fabric.

Fig. 17 is a sectional view showing the insertion folded out or thefabric in normal position.

Fig. 18 is a plan view of the same.

Fig. 19 is a detail in transverse'section, showing the relation of thepresser foot to the fabric being stitched.

The invention consists, generally, in providing a sewing machine havingspaced needles with means for guidingthe edges of two pieces of fabricso that said edges are spaced from .each other and are fed to therespective needles. This guiding means for the edges of the fabric maybe so constructed as to fold the edge or orm a small hem thereon and theneedles pass throu h the folded edges of the respective abrics. There isalso provided a guiding device for an insertion which in one for1n,ofthe invention guides the insertion above the edges of the fabrics sothat the outer side edges form a bend in the insertion longitudinallythereof so that the side edges of the insertion may be brought closertogether during the stitching of the same to the fabric. This permits ofan insertion which is considerably wider than the distance betweentheneedles being stitched to the spaced edges of the fabric. Byadjusting the position of this rib, insertions of different widths maybe accommodated.

Patented July 30, 1918.

' support 1 having the usual depending apron 2 and an overhanging armwhich supports a needle head 3. The needle bar 4 reciprocates in thisneedle head and carries two needles 5 and 6. A 'presser bar 7 is alsomounted in the overhanging arm and carries a presserfoot 8. The; shank 9of "the presser foot is fixed to the presser bar and the foot portionproper ispivoted to the shank by a pivot pin 10. Said foot portion hastwo spaced lugs 11, 11 between which the shank 9 of the presser foot islocated. The presser foot proper is formed with two shoes '12 and 13which are spaced so as to form a groove 14 extending from front to rearof the same. Each shoe is provided with a needle hole 15.

For guiding the fabrics to the needles, I have provided two fabricguides 16 and 17. These fabric guides are similar in construction andeach consists of a supporting bracket 18 which is fixed to the worksupport by a screw 19. Each folder also comprises a raised fabricsupporting plate 20 and an edge folder 21, see Fig. 4. This plate andedge folder are so constructed that the fabric led through the folderwill have its edge turned underneath forming a small hem. In Figs. 8, 9and 10, I have shown two strips of fabric F and F in which the edges f,f are folded, as above noted. These folders are positioned in advance ofthe needles 5 and 6 and the folder 16 is so positioned as to direct thehem turned on the fabric guided thereby so that the needle 6 will passthrough said hem. The folder 17 is so positioned as to guide the fabriccarried thereby to the needle 5 in a similar manner. These folders arespaced above the work support, as clearly shown in Figs. 1 and4. Theinsertion guide 22 extends underneath the adjacent edges of the foldersto a point adjacent the delivery ends thereof. This insertion guideconsists of a supporting plate 23 which isrigidly attached to asupporting shank 24. This supporting shank is secured by screws 25, 25to a bracket 26. The bracket 26 is formed with a slot 27 through which ascrew 28 passes and secures the bracket to the depending apron 2 of thework support. The apron and the work support is cut away so as to form arecess or space for the insertion guide. The plate 23 has its edgesturned up as at 29 and a bridge plate 30 is secured to the edges, whichbridge plate is spaced from the plate 23 so as to form a guiding recess31 for the insertion. The plate 23 is tapered, as indicated at 32 in Fi2 of the drawings. This tapered section 18 in front of the folders 16and 17. The rest of the insertion guide is straight, as

section of the insertion guide.

shown in this figure. The bottom plate is formed with a slot 33 whichextends from a point adjacent the forward end of the insertion guide toa point adjacent the delivery end thereof, see Fig. through this slot isa rib 34. This rib has its front end inclined upwardly, as at 35, whilethe remainder of the upper edge .of the rib is substantially horizontal.The inclined portion 35 is located in the tapered the bridge plate 30are two spring fingers 36 and 37. These spring fingers conform 3.Passing- Secured to to the spaces between the central rib and the turnedup edges 29 of the supporting plate 23. The insertion is passed throughthe guiding slot 31 and this insertion is led between the supportingplate 23 and the fingers 36 and 37 As soon as the end of the insertionreaches the incline 35 the insertion will be gradually bent between itsedges and the side edges drawn toward each other, v

corresponding to the tapered section 32 of the guide. In Fig. 8, theinsertion is indicated at S, and the bent up portion is indicated at s.the insertion passes through this guide, there will be a bent up orfolded portion as it passes the guide and the side edges will have beendrawn toward each other. This bent up portion of the insertion passesthrough the space 14 between the shoes 12 and 13 of the presser foot.

The bending rib 34 is carried by a block 38 which slides in the shank 24supporting the plate 23. The shank is cut away-to It will thus be seenthat as.

form a slideway for this block 38. A screw 39 is threaded into thebloc-k and this screw is formed with a collar 40 which is spaced fromthe head 41 of the screw so as to form a groove or recess for aprojecting portion 42 of the shank which holds the screw 39 fromendwis'e movement. By rotating this screw, therefore, the rib 34 may beraised and lowered. VVhenit is raised a greater portion of the insertionwill be taken up between its side edges, and when it is lowered a lesserportion thereof will be taken up. By adjusting this rib insertions ofvarying widths within certain limits maybe accommodated.

From the above, it will be apparent that the insertion passing throughthe insertion guide will be led underneath the folded edges of thefabrics F, F, and will be stitched thereto, and the width of theinsertion may be considerably greater than the In Figs. 11 to 18,inclusive, I have shown a slightly modified form of the invention p asto be stitched-to upper faces of two" wherein the insertion is stitchedto the u per faces of the fabrics. In this form of t e invention thepresser foot, the needle mechanisni, and the foldersare precisely thesame as above described, although the folders may be placed closer tothe work support, if desired as the insertion guide is aboye thefolders. similar in construction to the insertion guide above described,although the manner of supporting the same and the manner of adjustingthe crimping rib is somewhat different. Said insertion guide consists ofa supporting plate 44 which is attached to a shank 45. The shank 45 hasa bridge 46 spaced from the plate 44 so as to form a guiding recess 47for the insertion indicated at S, Fig. 14. The bridge portion 46 isclamped by suitable screws to an arm 48,

which in turn is secured to an arm 49 which is pivoted at 50 to abracket 51 on the overhanging arm, and this bracket is secured to theoverhanging arm by suitable screws 52. This bracket carries anadjustable stop 53 against which the arm 49 rests when said insertionguide is in normal position for guiding the insertion. This guide may bereadily swung away from the stitching mechanism to give access theretofor the purpose of threading the needles.

The bridge portion 46 has-forwardly projecting fingers 54 which extendthe length of the gui e and are adapted to yieldingly engage the upperface "of. the insertion. These fingers are spaced so as to form a slotThe bending rib 56 extends upwardly through said slot. Said rib has aninclined upper edge, 57 which \gradually folds or bends the insertion.shown, is carried by a shank 58 which is pivotedat 59 to the supportingshank 45 of the insertion guide proper. The plate 44 is slotted at 60 topermit this rib extending through the same. The rib for the greaterportion of its length is above the plate 44. The extreme outer end ofthe rib has, a downwardly projecting portion 61 which engages a slot inthe plate 44 to guide the rib and prevent the same from sidewisemovement. The shank 58 extends to the rear-of the pivot 59 and engagesin a groove formed between the head 62 and a collar 63 of a screw 64. Byturning the screw 64, the rib is raised and lowered, and thus the amountof insertion taken up is varied In Fig. 16, I have shown the position ofthe insertion S as it is being stitched to the fabrics F, F. In Figs. 17and 18, the insertion S is fiattened out into normal position.

From the above description, it will be apparent that an insertion may beguided so spaced edges of fabric tnd that the width of the insertion maybeconsiderably greater than the dlstance between the needles secur- Theinsertion guide indicated at 43 1s This rib, ashereining said insertionto the fabrics. It will also be apparent that the guide may be adjustedfor varying widths of insert-ion with out adjusting the distance betweenthe needles.

While I have referred to the guide as an insertion guide, it willbeunderstood that I have used this term in the broad sense and that saidguide may be used to guide any character of insertion, whether a laceinsertion or a plain strip of fabric. It will also be obvious that minorchanges in the details of construction and the arrangement of parts maybe made without departing from the spirit of the invention as set forthin the appended claims.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. The combination with stitch forming mechanism including spacedneedles, and means for guiding the edges of two fabrics to said needleswith a space between the edges, of an insertion guide including a supporting plate, spaced guiding devices for holding the insertion on saidplate, and an independent rib'extending between said devices and abovethe same for folding and bending the insertion longitudinally betweenits side edges.

dependent rib extending through said slot L and between said fingers andabove the same for folding or bending the insertion longitudinallybetween its side edges;

3. The combination with stitching mecha nism, including spaced needles,and means for guiding the edges of two fabrics to said needles with aspace between the edges, of an insertion guide including a supportingplate, guiding fingers for holding the insertion on said plate, saidplate having a slot extending longitudinally thereof, and said fingersbeing spaced from each other, a rib extend ing through said slotandbetween said fingers and above the same for folding or bending theinsertion longitudinally between its side edges, and means for adjustingsaid rib and holding the same in adjusted position. Y

4. The combination with stitching mechanism including'spaced needles,and means for guiding the edges of two fabrics to said need es with aspace between the edges, of an insertion guide including a supportingplate having a tapered section intermediate its ends, abridge portionspanning the receiving end of the guide, fiat yielding fingers betweenthe fingers and having an inclinededge for gradually folding or bendingthe insertion between its side edges as it passes through the guide.

The combination with stitching mechanism including spaced needles, andmeans for guiding the edges of two fabrics to said needles with a spacebetween the edges, of an insertion guide including a supporting platehaving a tapered section intermediate its ends, a bridge portionspanning the receiving end of the guide, flat yielding fingers carriedby said bridge portion and adapted to hold the insertion on said plate,said flat fingers being spaced from each other, a folding rib extendingthrough the space between i the fingers and having an inclined edge forgradually folding or bending the insertion between its side edges as itpasses through the guide, a presser foot cooperating with the stitchingmechanism and having spaced shoes forming a slot through which the bentor folded portion of the insertion passes during the stitching of theinsertion to the edges of the fabric.

6. The combination with stitching mechanism including spaced needles,and'means for guiding the edges of two fabrics to said needles with aspace between the edges, of

an insertion guide including a supporting plate having a tapered sectionintermediate its ends, abridge portion spanning the receiving end of theguide, flat yielding fingers carried by said bridge portion and adaptedto hold the insertion on said plate, said fiatfingers being spaced fromeach other, a folding rib extending through the space between thefingers and having an inclined edge for gradually folding or bending theinsertion between its side edges as it passes through the guide, andmeans carried by. the insertion guide for adjustin said rib and holdingthe same in adjuste position.

7. The combination with stitch forming mechanism, including spacedneedles, means for guiding the edges of two fabrics to said needles witha space between the edges, of an insertion guide including a supportingplate, a bridging portion spanning the receiving end of the guide, fiatyielding fingerslcarried by said bridging portion and adapted to holdthe insertion on said plate, said flat fingers being spaced from eachother and a folding 'rib extending through the space between the fingersand having an inclined edge for gradually folding or bending theinsertion between its side edges as it passes through the guide.

8. The combination of stitch forming mechanism, including spaced needlesand means for guiding the edges of two fabrics to said needles with aspace between the edges, of an insertion guide including a supportingplate having a tapered section intermediate its ends, fiat yieldingfingers adapted to hold the insertion on said supporting clined edge forgradually folding or bend-' ing theiinsertion between its side edges asit passes through the guide.

'9. The combination of stitch forming mechanism, including spacedneedles and means for guiding the edges of two fabrics to two needleswith a space between the edges, of an insertion guide including asupporting plate, devices for holding the insertion on said plate. saidplate having a slot extending longitudinally thereof, a folding ribpivotally supported at a point below the supporting plate and extendingthrough said slot above the holding devices for folding and bending theinsertion longitudinally between its side edges and means for adjustingsaid rib on said pivotal support and

